Simplification Questions

• What is the value of sin (90° + 2A)[4 – cos2(90° – 2A)]?
• What is the value of [cos (90 + A)÷sec (270 – A)] + [sin (270 + A)÷cosec (630 – A)]?
• If sec2A cosec2A = x , then x is
• If sin π/6 + sec π/6 = x, then x is
• Square of (3x – 5xy) is
• If 5 - 2x ≥ 4 - x and 3(2 - x) > 2 - 4x; then x can take which of the following values?
• If x3 = 62 - 32 , then the value of x is
• Which of the following is not a quadratic equation?
• If sinA = x, then x is equal to
• What is the slope of the line, perpendicular to the line 3x - 6y = 4?
• Product of 9b2, 3a2 and 4ab is
• If tan2A - tan2B = x , then the value of x is
• √[(1 sinA)/(1 + sinA)] is equal to?
• What is the value of (4a2 + 8b + 14c + 2)/2 ?
• Coefficient of x2 in (x + 9)(6 - 4x) is
• What is the value of cot 5π/3?
• If sin3A = x, then value of x is
• If 7x + 6y = 5xy and 10x - 4y = 4xy, then value of x and y is
• If A = 0.216 + 0.0080.36+0.04-0.12 & B = 0.729-0.0270.81+0.09+0.27 , then what is the value of A2+B22 ?
• If 56 × 75 × 60 × 84 × 210 = 2p × 3q × 5r × 7s , then what is the value of [(p + q)/s] + r?